Earth Construction Solutions
Categories: Housing & Construction
Organization: Earth Construction Solutions for a Sustainable World
Used by: Brazil, Bolivia, Chile, UK, India, Nepal and many others
Different earth construction techniques are used all over the world. The main material for the construction is soil that can be obtained locally. Ancient earth construction techniques have been improved and modernized. Today almost 50% of the world population lives in earth construction houses and buildings. Earth construction is sustainable. The ecological footprint is low because earth-houses are constructed involving local community (local work schemes). Earth construction can be found in several parts of the world. Including sophisticated communities such as ecovillages. In many times the earth construction techniques are linked to the concept of permaculture. There are several other techniques of earth construction that was born from the 'vernacular architecture in Africa. The rammed earth walls have passive solar heat gain; passive cooling; indoor thermal comfort; and uses natural and reclaimed materials.
underground construction for biogas production
Categories: Energy, Food & Agriculture, Education, Healthcare, Housing & Construction, Water & Waste Water
Organization: People in Need and National Biodigester Program
Used in: Cambodia
The Farmer’s Friend Biodigester is an underground construction where biogas is produced from decomposing animal manure under anaerobic conditions, which is then harnessed as a fuel for domestic gas stoves and lamps. Families don’t need to purchase or cut down wood for cooking in smoke-filled rooms anymore. Thanks to reduced burning of firewood, the improved manure management system and the utilization of biogas, greenhouse gas emissions fall annually by 5 t CO2 per biodigester. The effluent (digester slurry) is used as an effective organic fertilizer improving soil quality and production while reducing farmers’ expenditures. The farmer’s friend design is based on the ‘Deenbandhu’ model which is in use for over 20 now years in India. The majority of domestic biodigesters is promoted and constructed by private Biodigester Construction Companies (BCC) which were established and coached by joint NBP-SNV-PIN initiative and support. BCCs are small enterprises providing employment and qualification to over 800, predominantly young people living in the rural areas of Cambodia. According to the latest monitoring report, around 2,000 man-years of rural employment have been created between 2006-2013.
Interlocking Stabilised Soil Blocks food storage silo
Categories: Food & Agriculture, Housing & Construction
Organization: Technology for Tomorrow Ltd
Contact Person: Moses Kizza Musaazi
Contact Address: firstname.lastname@example.org
Used in: Kenya, Uganda
ISSB Granary is an alternative and more viable solution for food security especially for peasant farmers who cannot afford the minimum tonnage to put into silos. Additionally it is a commercial tool for farmers to store and sell their crop (e.g. maize) when the price is highest. This is usually 2-3 months after the harvest season during which the sales price is usually the lowest. In comparison to the traditional granaries, the construction of the ISSB Granary requires minimum skills and uses only environmentally friendly technologies (Interlocking Stabilised Soil Blocks or ISSB).
Liter of Light
A plastic bottle as source of solar light
Categories: Energy, Housing & Construction, Waste Management & Recycling
Organization: Liter of Light - Switzerland
Contact: Peter Freudenstein
Used by: Philippines, Vietnam, Bangladesh, India, Egypt, Kenya, Tanzania, Uganda, Zambia, etc.
Liter of Light aims to provide an ecologically and economically sustainable source of light to underprivileged communities around the world. This source of light is based on a solar bottle, easy to install and requires only simple technology and accessible materials. In detail: You take a plastic bottle, fill it with water and some chlorine to keep the water clean, and then make a hole in the roof of the household & install the bottle - half outside half inside. The daylight that enters from above gets diffracted by the water and spreads the light into the room. During the day, it substitutes a 55 watt light bulb completely. Our solution also works when the sky is clouded. There is still enough light getting inside the bottle, but of course the bottle will shine less brightly. The impact of installing these solar bulbs goes beyond providing light. It will lead to a better quality of life for the families, create new working opportunities and will reduce the carbon dioxide footprint.
A Local Solution to Earthquake-Proofing Rural Housing
Categories: Housing & Construction
Organization: Habitat for Humanity Deutschland e.V.
Contact: Gereon Fischer, Manager International Projects
Used by: Tajikistan
The material used is renewable and has been tested for sufficient strength as required by professional calculations. The technology uses timber framing and mulberry branches as the structural reinforcing elements on the walls. The technology has been based on the native Mulberry tree which is widely spread in Tajikistan and many other countries. Scientific research, certified by Tajikistan’s Institute of Seismology has shown that Mulberry twigs can withstand earthquakes up to a magnitude of 8-9 on the Richter scale. Mulberry twigs can be harvested easily, coupled into grids and attached to internal mud walls using a plaster mixed with straw and wool. As a result, this seismically stabilizes the walls and thus provides much needed structural protection for the inhabitants. The technology can be implanted into the construction of new homes or added to existing homes, even to those already having suffered from earthquake damage.
Low-cost, sustainable solution for the housing problem
Categories: Housing & Construction
Organization: Enactus Cairo University
Contact: Menan Khater
Used: all over the world
Enactus Cairo University builds low-cost, sustainable earth-bag buildings that provide an alternative solution for the housing problem. The main goal is to form suitable houses for the homeless people, utilizing earth-bags due to economic, environmental and social advantages. Additionally to provide shelter for the homeless, we are also aiming to decrease the unemployment rate by teaching the Bedouin youth the craft of building earth bags houses. The technical aspect to construct a fully functioning house using sandbags is quite simple Environmental material is extracted from the earth underneath our feet, saving a lot of money spent in building a normal reinforced concrete house, reducing the pollution by using environmental materials, also saving time by finishing the house in almost 15 days. Earth bags (sandbags) is both an old and a new idea. Sandbags have long been used particularly by the military for creating strong, protective barriers, or for flood control. The same reasons that make them useful for these applications carry over to creating housing. Since the walls are so substantial, they resist all kinds of severe weather (or even bullets) and also stand up to natural calamities such as earthquakes and floods.